Caulking gun with attaching means for replaceable carton



24, 1953 D. N. SLOBIN 2,629,517

CAULKING GUN WITH ATTACHING MEANS FOR REPLACEABLE CARTON Filed July 18,1951 I; 55 I: 41. I

INVENTOR l x E] David mazamn BY MQLM ATTORNEYS Patented Feb. 24, 1953UNITED STATES PATENT QFFICE oAUL-KING GUN WIWTH ATTACHING MEANS FORREPLACEABLE CARTON David N. S1obin,gBro'oklyn, N. Y.

1 Application July 18, 1951, Serial No. 237,352

' j olai (01. 222-327) This inveancu-re1atsto winking guns.

An object of this invention-is to provide in a caulking gun-an improvedmeans-for supporting the magazine in a manner whereby the -materialwithin the magazine may be extruded or ejected from the nozzle.

Another object of this invention is to provide in a caulking gun havinga movable plunger engageable within a magazine, an improved meanswhereby the nozzle will be correctly positioned with respect to thehandle.

A further object of this invention is to provide in a caulking gun animproved magazine support and alignment means whereby the magazine withthe nozzle may be easily and quickly snapped into and out of operatingposition.

A further object of this invention is to provide in a caulking gun animproved magazine support which will rigidly support the magazine inaxial alignment with the plunger so that the magazine will not shift orget out of alignment during the use of the gun.

A further object of this invention is to provide in a caulking gun animproved magazine alignment device and sup-port which is simple inconstruction and will not get out of order during the use of the gun.

With the above and other objects in view, my invention consists in thearrangement, combination and details of construction disclosed in thedrawings and specification, and then more particularly pointed out inthe appended claim.

In the drawings:

Figure l is a detailed side elevation partly broken away and in sectionof a caulking gun constructed according to an embodiment of thisinvention.

Figure 2 is a front elevation of the gun.

Figure 3 is a sectional view partly broken away taken on the line -33 ofFigure 2.

Figure 4 is a sectional view taken on the line -$4 of Figure 3.

Referring to the drawing, the numeral ID designates generally a handlewhich has pivotally mounted thereto a plunger operating lever or triggerI 1 adapted to move a plunger rod. 12 forwardly into the magazine M. Theplunger rod I2 is provided with ratchet teeth 13 on the lower sidethereof, and the teeth l3 are engaged by a rear operating spring pressedpawl I4 movable forwardly with rearward rocking of the lever l I.

A holding spring pressed dog or pawl I also engages the teeth It so asto prevent rearward movement of the plunger rod l2 during the extrusionof the material from the magazine M. The rear end of the plunger rod I2is provided with a right angularhandle or extension lfibyjme'anso'f-wh'ich the rod l2 upon partial turning thereof to disengage theteeth" 53 from the p-awls l 6' and 15 may be moved rearwar-dly to astartin posie The magazine M which is of conventional construction isprovided with a rear end head ll having an annular flange iii projectingrearwardly therefrom, and the magazine M is also provided with a forwardhead l9 having an annular flange 29. The head it is formed with acentrally disposed aperture 2! which is initially closed by means of aflap or closure 22.

The plunger rod l2 which is slidable through a guide opening 23 carriedby the handle It) is provided at its forward end with a plunger head orpiston E l. The head or piston 2% is adapted to engage within the flangel8 and to bear against the rear side of the rear head ill.

The handle it has-secured to the forward end thereof a plate 25 formedwith an upper flange 26 and a lower arcuate flange 27. The front wall 23of the handle it has projecting therefrom pairs of securing lugs 29which engage through openings 39 formed in the plate 25.

A transversely arcuate magazine supporting arm 3| is fixedly secured tothe flange 2'1 and projects forwardly beneath the magazine M to theforward end of the latter. An upwardly projecting plate 32 is formedintegral with the supporting arm 3| and is provided with an upwardlyopening slot 33 through which an extruding nozzle 3 1 is adapted toloosely engage.

The slot 33 forms a pair of fingers 35 at the upper end of the forwardplate 32, and these fingers 35 are outwardly bent as indicated at 36 tofacilitate the insertion and removal of the mega zine VI.

The nozzle 34 which is provided with an inclined mouth 31 is carried bya disc shaped plate 33 having an annular flange 38 telescoping over theforward end of the magazine M. The nozzle structure embodying the nozzle3d and the cap which includes the plate 38 and flange 39 is retained incoaxial position with respect to the plunger rod i2 by means of arearwardly projecting bead 4B which is formed in the plate 32 below thenozzle 35, and the bead 49 engages within a groove 4! which is formed inthe cap plate 38.

The head 43 and the groove ii form a locking means for the nozzlestructure so as to prevent this structure from disengagement with theplate 32 during the use thereof and also forms a means for holding thenozzle structure in axial alignment with the plunger rod [2.

In the use and operation of this gun structure the magazine M having theend caps l1 and 19 in the opposite ends thereof is inserted into themagazine holder, and at this time the plunger rod I2 with the plungerhead 24 is disposed at its rearmost position.

At the time the magazine M is inserted into the holder the nozzlestructure is slipped over the forward end of the magazine, and thenozzle cap is then snapped into position with the bead 40 engaging inthe groove 4|. The plunger operating lever ll may then be rocked to movethe plunger rod forwardly so as to thereby extrude the material throughthe nozzle member 34.

While the supporting arm or bar 3| is shown as being welded or otherwisefixedly secured to the arcuate flange 21 of plate 25 it will beunderstood that arm 3| may be made integral with flange 21 and plate 25.

What is claimed is:

In a caulking gun having a handle, a piston, and ratchet means formoving said piston, means supporting a magazine coaxial with saidpiston, said supporting means comprising an elongated transverselycurved supporting arm, a right angular plate at the inner end of saidarm, upper and lower magazine holding arcuate flanges on said platemeans securing said plate to the forward end of said handle, a secondplate carried by the outer end of said arm and formed with an upwardlyopening slot, a nozzle seating in said slot, a cap secured to saidnozzle adapted to engage over the outer end of the magazine, and atransversely disposed inwardly convexed bead carried by said secondplate, said cap having an inwardly concaved groove within which saidbead removably engages whereby said nozzle will be held in axialalignment with said piston.

DAVID N. SLOBIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,157,552 Kispert Oct. 19, 19152,530,359 Peterson Nov. 14, 1950

